Device for honing safety-razor blades.



No. 660,540- Patented Oct. 30., |900.

F.,` R. @L KAMPFE. DEVICE FOB HUNING SAFETY RAZOR BLADES.

(Application tiled Sept. 22, 1899.)

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H0. 660,640.. Patented 0M. 30, |900.

F.; n. & u. KAMPFE. DEVICE FDR HONING SAFETY RAZURBLADES.

(Applvieation led Sept. 22, 1899.)

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UNITED STATES PATENT OFFICE..

FREDERICK KAMPEE, RICHARD KAMPFE, AND oTTo KAMPFE, or NEW YORK, N. Y.

DEVICE FOR HONING SAFETY-RAZOR BLADES.

SPECIFICATION forming part of Letters Patent No. 660.640. dated001301091* 30. 1900 Application tiled September 22, 1899. Serial No.731,319. (No model..

l'b all whom, ii may con/cern.-

Beit known that we, FREDERICK KAMPFE, RICHARD KAnPFE, and OTTO KAMPEE,citizens of the United States, and residents ofthe city of New York,borough of Brooklyn, in the county of Kings and State of New York, haveinvented certain new and useful Irnprovements in Devices for HoningSafety- RazorBlades, of which the following is a specification.

The object of our invention is to provide av Fig. (i is a view of theunder side ofthe honing p device, parts being` omitted.

The honing-stone A is placed in a troughshaped receptacle B, shaped toreceive it and provided on its bottom on the longitudinal central lineat each end with an upwardlyprojecting tapered pin a, which enters acorresponding recess b in the under side of the stone, so as to adaptthe stone to give or yield slightly in downward direction at both sides.The receptacle B is provided at its upper edge at each end with alaterally-extending lug C, having a threaded aperture. The receptacle Bis placed into a base D, having legs E on the bottom and recessed endsover which the lugs C of the receptacle B can pass. The receptacle B isprovided on its under side at each corner with a teat B', which rests inthe upper end of a helical spring G, of which there are four, the lowerends of said springs resting in recesses E in the upper parts of thefour legs E, so that the receptacle is supported by said four springs G.The

lock-nut I beine` screwed on the screw I directly below the lug C. Thescrew-heads I2 rest against the under sides of the wingsI-l. The base Dis provided with wings J, projecting outwardly laterally from theupperedges of the side walls, and these wings are provided with upwardlyextending flanges K along the outer edges and ends and with a transverseslot L at each end. Leather or rubber straps M rest on the wings J andform friction-tracks, and their ends are passed through the slots L andattached to the ends of helical springs N on the under sides of thewings, whereby said straps are held taut on the wings J.

The blade-holder consists of a shaft O, mounted to turn in the ends of afork P, having a handle Q, the ends of the shaft extending beyond theshanks of the fork, and on each such projecting end a hard-rubber rollerR is fixed. The length of this shaft, including the rollers R, isslightly less than the distance between the flanges K of the wings J.Adjacent to the inner side of each prong of the fork P a sleeve S ismounted to slide on the shaft O and is pressed in the direction from theinner side of said prong by a helical spring T, surrou nding said sleeveand resting against said prong and a raised annular rim S on saidsleeve. Between said sleeves S halfof the diameter of the said shaft Ois cut away, as at O'. A U-shaped longitudinal socket V is swiveled atits center to said flat portion of the shaft, said socket being shapedto receive the. back of the safety-razor blade d. The socket V has slotsW to increase its spring tension and is provided at each end with atongue U. The blade d is pushed into the socket V while the sanne is atright angles to the shaft O, and then the socket, with the blade, isswung in line with the shaft O and the sleeves S pushed toward theprongs of the fork P, and when the tongues U are in line with the shaftO said sleeves are released and by their springs T are pushed over theend tongues U, and thus hold the socket in line with the shaft S. Theholder is then placed upon the stone A in such a manner that the rollersR rest upon the straps M, the stone A yielding more or less. The holderis then moved over the length of the stone, so

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that the blade d moves over the stone edge foremost. When the directionof movement of the holder is reversed, the friction between the rollersR and straps M automatically turns the shaft O axially, and the blade isthus automatically reversed, so that it again moves edge foremost overthe stone A on the return stroke, and so on. As the stone is not heldrigidly, it can always adapt itself to the blade, and by means of thescrews I the stone can easily be adj usted to be at the properelevat-ion in relation to the straps M.

Having described our invention, what We claim as new, and desire tosecure by Letters Patent, is-

l. In adevice forhoningsafety-razor blades, the combination With a basefor receiving a honing-stone, of friction-tracks on the sides of saidbase, a reversible blade-holder and friction-rollers fixed on the endsof said reversible blade-holder, mounted to run on said tracks,substantially as set forth.

2. In adevice for honing safety-razor blades, the combination With abase for receiving a honing-stone, of side Wings on said base,friction-straps held on said Wings, a reversible blade-holder andfriction-rollers on the ends of said reversible blade-holder, to run onthe surfaces of the straps, substantially as set forth.

3. In ahoning device, the combination with a base for receiving a stone,of side Wings on said base and having slots at the ends, straps restingon the Wings and having their ends passed through said slots and meansattached to the ends of the straps on the under sides of said Wings forholding the straps taut, substantially as herein shown and described.

4. In a honing device, the combination with a base having sidefriction-tracks, of a stonereceptacle in said base and means foradjusting said receptacle in relation to the frictiontracks,substantially as herein shown and described.

5. In a honing device, the combination with a base having sidefriction-tracks, of a stonereceptacle in said base, lugs on the ends ofthe receptacle wings on the ends of the base, and screws in said lugsand wings, substantially as herein shown and described.

6. In a honing device, a blade-holder composed of a U-sbaped frame, ashaft mounted in the ends of the prongs, friction-rollers on said shaft,a blade-holding socket and means for holding the socket on said shaft inline With the same, substantially as herein shown and described.

7. In a honing device, a blade-holder composed of a U-shaped frame,ashaft mounted in the ends of the prongs, friction-rollers on saidshaft, a blade-holding` socket swiveled on said shaft and meansforholding it on the shaft in line with the same, substantially asherein shown and described.

8. In a honing device, a blade-holder composed of a U-shaped frame, ashaft mounted in the ends of the prongs, friction-rollers on said shaft,a blade-holding socket having end tongues, a sliding sleeve at each endof the shaft and a spring for pressing each sleeve from the adjacentprong of the fork, substantially as herein shown and described.

Signed at New York, in the county of New York and State of New York,this 18th day of September, A. D. 1899.

FREDERICK KAMPFE. RICHARD KAMPFE. OTTO KAMPFE.

Witnesses:

N. M. FLANNERY, O. F. GUNZ.

